After getting lost in the disorienting greenery of Costa Rica’s jungle, Peterson captures an idle bullet ant, and quickly proceeds to sacrifice his forearm in the good name of science and sadism. The feisty little creature -- native to the South American rainforest -- is known to inflict an overwhelming surge of pain by way of its venomous stinger. Entomologist Justin Schmidt, who created the insect sting pain index, describes the bullet ant sting as similar to “walking over flaming charcoal with a three inch nail embedded in your heel.”
Around the 13-minute mark of the video, Peterson picks the bug up with forceps and allows it to penetrate his arm, plunging his veins full of venom. The bug initially gets its stinger stuck though, staying lodged in his skin for what seems like an eternity. After wrestling this arm free, the explorer falls to the ground, offering no shortage of PG-expletives and writhing in horror. The pain comes in waves, lasting up to 24-hours, with the venom capable of inducing hallucinations.